I’m EE major and feel tired to read books too. My solution is reading the book, optionally listening to the book, and taking notes together. I feel that taking notes can force me to understand what I read. When I can’t compose the notes, I ask LLM or read the thing again or Brave/DuckDuckGo it. I use Neovim to takes notes in LaTeX and Piper with Elleo/pied for TTS BTW.